@article{VMUMM_1986_5_a25,
     author = {\`E. G. Poznyak and \`E. R. Rozendorn and V. A. Sadovnichii},
     title = {The dedicated to the 75th {Birthday} {Anniversary} of {N.~V.~} {Efimov} united sessions of the seminar on geometry in whole and the scientific-research seminar of mathematical analysis chair},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {92--98},
     publisher = {mathdoc},
     number = {5},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1986_5_a25/}
}